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BCP Ch 19 Optics

BCP Ch 19 Optics. Have your book available as you look through these notes. Diagrams help explain the notes. 19.1 Mirrors. Reflect Mirror Types Flat Concave Convex Image Types. 19.2 Lenses. Refraction Lens Types Convex Concave Image Types. 19.3 Optical Instruments.

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BCP Ch 19 Optics

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  1. BCP Ch 19 Optics Have your book available as you look through these notes. Diagrams help explain the notes.

  2. 19.1 Mirrors • Reflect • Mirror Types • Flat • Concave • Convex • Image Types

  3. 19.2 Lenses • Refraction • Lens Types • Convex • Concave • Image Types

  4. 19.3 Optical Instruments • Applications of Reflection and Refraction • Telescopes • Cameras • Microscopes

  5. 19.4 The Eye and Vision • Parts of the eye • Cornea – transparent window through which light enters the eye. Vulnerable to damage but repairs itself very quickly. • Iris – radially arranged muscles that regulate the amount of light entering the eye has a rounded opening: • Pupil – this is dilated in distant vision and dim light and constricted in close vision and bright light. • Retina – contains rods and cones (receptor cells) that respond to light. In order for images to be seen, they need to form here. • Optic Nerve – electrical signals from rods and cones are transmitted through this and you SEE!

  6. Common vision problems • Nearsighted people have a long eyeball and images form in front of the retina. • Corrected with a concave lens which moves the image to the retina • http://www.uniteforsight.org/course/image/m_eye.jpg • Farsighted people has a short eyeball and image form behind the retina. • Corrected with a convex lens which moves the image to the retina • http://www.uniteforsight.org/course/image/h_eye.jpg

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